Security readout for executives and security teams
Plain-English summary
Tenda W30E V2 management pages may miss a browser safety header. In limited circumstances, a browser could treat attacker-influenced content as script. The listed severity is low, with user action and specific conditions required. The provided sources do not show active exploitation.
Executive priority
Treat this as a low-priority hardening issue unless W30E V2 administration is exposed to untrusted users or the internet. Track vendor updates and reduce management-plane exposure.
Technical view
CVE-2026-24439 describes missing X-Content-Type-Options: nosniff on Tenda W30E V2 firmware up to V16.01.0.19(5037). The risk is MIME sniffing on web management responses, potentially allowing script interpretation of attacker-influenced content. CVSS 4.0 is 2.1 with high complexity, preconditions, and active user interaction.
Likely exposure
Organizations using Tenda W30E V2 devices with reachable web management interfaces are the relevant exposure group. The bundle does not establish broad internet exposure or affected deployment prevalence.
Exploitation context
The CVE is not listed as KEV. The provided sources do not report active exploitation. The CVSS vector indicates network reachability, no privileges, high complexity, a required precondition, and active user interaction.
Researcher notes
Evidence is limited to the CVE metadata, vendor product page, and VulnCheck advisory. No exploit status, patch version, or vendor remediation detail is provided in the source bundle.
Mitigation direction
- Check Tenda guidance and firmware downloads for a fixed release or vendor mitigation.
- Restrict W30E V2 management access to trusted administrative networks only.
- Avoid exposing the web management interface directly to the internet.
- Use hardened admin browsing practices for router management sessions.
Validation and detection
- Inventory Tenda W30E V2 devices and record firmware versions.
- Confirm whether firmware is up to and including V16.01.0.19(5037).
- Inspect management interface responses for the X-Content-Type-Options header.
- Verify management interfaces are not reachable from untrusted networks.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-116: User-session and phishing behavior lookup
Client-side and session-facing weaknesses should be reviewed alongside initial-access and user-execution behaviors. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2026-24439 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Low
- CVSS
- 2.1 (4.0)
- Known Exploited
- No
- Published
Vector: CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
SSVC decision data
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N——VulnCheckVulnerability scoring details
Base CVSS 4.0 score
2.1LowVector: CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N
Vulnerability timeline
Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.
- CVE reservedCVE Program
The CVE ID was reserved by the assigning CNA.
- CVE publishedCVE Program
The CVE record was published.
- CVE updatedCVE Program
The CVE record metadata indicates this as the latest update time.
ADP provider summaries
Source materials
- CVE List V5 sourceCVE List V5
- https://www.tendacn.com/product/W30ECVE reference, VulnCheck · product
- https://www.vulncheck.com/advisories/tenda-w30e-v2-lacks-x-content-type-options-headerCVE reference, VulnCheck · third-party-advisory
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Improper Encoding or Escaping of Output
Improper Encoding or Escaping of Output represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.